第一节：单项填空（共25题，每小题1分，满分25分）
11. In the end , he turned ______history teacher, who had______ good knowledge of history,
especially ______ history of ______Ming Dynasty.
A. a,/,the, a B. /,a ,the, the C. /,a, the,/ D. a, a, the,/
13. We paid ________ cash in the hope that we can get a 15% _________.
A. by , count B. with , account C. in , discount D. in , charge
考点：考查介词和名词
14. Whether you believe it or not, it was________ caused the serious accident.
A. because of your carelessness that B. because you were careless
C. you were careless that D. your being carelessness that
